Screening of congenital heart disease patients using multiplex ligation-dependent probe amplification: early diagnosis of syndromic patients.
Am J Med Genet A
; 158A(4): 720-5, 2012 Apr.
Article
en En
| MEDLINE
| ID: mdl-22383218
ABSTRACT
Recurrent copy number variants (CNVs) are found in a significant proportion of patients with congenital heart disease (CHD) and some of these CNVs are associated with other developmental defects. In some syndromic patients, CHD may be the first presenting symptom, thus screening of patients with CHD for CNVs in specific genomic regions may lead to early diagnosis and awareness of extracardiac symptoms. We designed a multiplex ligation-dependent probe amplification (MLPA) assay specifically for screening of CHD patients. The MLPA assay allows for simultaneous analysis of CNVs in 25 genomic regions previously associated with CHD. We screened blood samples from 402 CHD patients and identified 14 rare CNVs in 13 (3.2%) patients. Five CNVs were de novo and six where inherited from a healthy parent. The MLPA screen led to early syndrome diagnosis in two of these patients. We conclude that the MLPA assay detects clinically relevant CNVs and suggest that it could be used within pediatric cardiology as a first tier screen to detect clinically relevant CNVs and identify syndromic patients at an early stage.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Dosificación de Gen
/
Variaciones en el Número de Copia de ADN
/
Cardiopatías Congénitas
Tipo de estudio:
Diagnostic_studies
/
Screening_studies
Límite:
Adolescent
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Aged
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Child
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Child, preschool
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Female
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Humans
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Infant
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Male
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Newborn
Idioma:
En
Revista:
Am J Med Genet A
Asunto de la revista:
GENETICA MEDICA
Año:
2012
Tipo del documento:
Article
País de afiliación:
Dinamarca